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|
package proton
import (
"context"
"errors"
"net"
"sync"
"github.com/ProtonMail/gluon/async"
"github.com/go-resty/resty/v2"
)
type Manager struct {
rc *resty.Client
status Status
observers []StatusObserver
statusLock sync.Mutex
errHandlers map[Code][]Handler
verifyProofs bool
panicHandler async.PanicHandler
}
func New(opts ...Option) *Manager {
builder := newManagerBuilder()
for _, opt := range opts {
opt.config(builder)
}
return builder.build()
}
func (m *Manager) AddStatusObserver(observer StatusObserver) {
m.statusLock.Lock()
defer m.statusLock.Unlock()
m.observers = append(m.observers, observer)
}
func (m *Manager) AddPreRequestHook(hook resty.RequestMiddleware) {
m.rc.OnBeforeRequest(hook)
}
func (m *Manager) AddPostRequestHook(hook resty.ResponseMiddleware) {
m.rc.OnAfterResponse(hook)
}
func (m *Manager) AddErrorHandler(code Code, handler Handler) {
m.errHandlers[code] = append(m.errHandlers[code], handler)
}
func (m *Manager) Close() {
m.rc.GetClient().CloseIdleConnections()
}
func (m *Manager) r(ctx context.Context) *resty.Request {
return m.rc.R().SetContext(ctx)
}
func (m *Manager) handleError(req *resty.Request, err error) {
resErr, ok := err.(*resty.ResponseError)
if !ok {
return
}
apiErr, ok := resErr.Response.Error().(*APIError)
if !ok {
return
}
for _, handler := range m.errHandlers[apiErr.Code] {
handler()
}
}
func (m *Manager) checkConnUp(_ *resty.Client, res *resty.Response) error {
m.onConnUp()
return nil
}
func (m *Manager) checkConnDown(req *resty.Request, err error) {
switch {
case errors.Is(err, context.Canceled):
return
}
if res, ok := err.(*resty.ResponseError); ok {
if res.Response.RawResponse == nil {
m.onConnDown()
} else if netErr := new(net.OpError); errors.As(res.Err, &netErr) {
m.onConnDown()
} else {
m.onConnUp()
}
} else {
m.onConnDown()
}
}
func (m *Manager) onConnDown() {
m.statusLock.Lock()
defer m.statusLock.Unlock()
if m.status == StatusDown {
return
}
m.status = StatusDown
for _, observer := range m.observers {
observer(m.status)
}
}
func (m *Manager) onConnUp() {
m.statusLock.Lock()
defer m.statusLock.Unlock()
if m.status == StatusUp {
return
}
m.status = StatusUp
for _, observer := range m.observers {
observer(m.status)
}
}
|
